Recently, the Ministry of Industry and Information Technology organized the National Automobile Standards Committee to lead the Tianjin Qingyuan, Dongfeng, Chery, Changan, SAIC and other universities and universities such as Tsinghua University and Tongji University to participate in the formulation of the "Technical Conditions for Pure Electric Passenger Vehicles". Approved by the General Administration of Quality Supervision, Inspection and Quarantine and the National Standardization Administration Committee, it became the national standard (GB/T 28382-2012) and was released in the No. 9 announcement in 2012. The standard will be officially implemented on July 1 this year.
The technical standards for pure electric passenger vehicles collected a large amount of data in the process of formulation, conducted in-depth experimental research, and extensively solicited opinions from all walks of life. This standard is applicable to pure electric vehicles driven by power battery and less than 5 seats. It puts forward the basic requirements of 30 minutes maximum speed not less than 80 km/h and working condition driving distance greater than 80 km, and stipulates the safety and quality of electric vehicles. Technical indicators for distribution, acceleration performance, gradeability, low temperature performance, reliability, etc.
The release of the "Technical Conditions for Pure Electric Passenger Vehicles" will further standardize the research and development and production of electric vehicles in China, which will help promote the application of the electric vehicle market, strengthen the management of electric vehicles, and promote the healthy development of the electric vehicle industry.
Orifice flanges are widely used in conjunction with orifice meters for measuring the rate of flow of liquids and gases. They are basically the same as standard welding neck, slip on and screwed flanges except for the profision of radial, tapped holes in the flange ring for meter connections and additional bolts to act as jack screws to facilitate seperating the flanges for inspection or replacement of the orifice plate.
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